This section refers to the oral Primobolan preparation, which contains the drug methenolone acetate. It is very similar in action to the injectable Primobolan Depot (methenolone enanthate), but obviously here the drug is designed for oral administration. At one time Schering was in fact also manufacturing an injectable methenolone acetate (Primobolan acetate, out of manufacture since 1993), which proved to be very useful for pre-contest cutting purposes. This steroid is now gravely missed, as it was once a favorite among European competitors. Although we still have the acetate in oral form, it is a close, but not equal substitute (injection is a much more efficient form of delivery for this steroid).